Question

A cloud engineer receives an alert that a production application's attached block storage volume is 92% full and growing. The volume hosts a live transactional database that cannot tolerate downtime. The cloud provider supports online volume expansion. After increasing the volume size through the provider console, the operating system still reports the original capacity. What must the engineer do to make the additional space usable without interrupting service?

Accepted Answer

Extend the partition and grow the filesystem on the running instance so the OS recognizes the expanded volume

Answer

Detach the volume, attach it to a temporary instance, resize it there, and reattach it to the production instance

Answer

Create a snapshot, provision a new larger volume from the snapshot, and swap it in during a maintenance window

Answer

Reboot the production instance so the kernel re-reads the volume geometry and applies the new capacity